Spiral formation and degeneration in heterogeneous excitable media
| Autor: | Ben de Lacy Costello, Christopher Stone, Rita Toth, Andrew Adamatzky, Jonathan Masere, Larry Bull |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Critical time business.industry Degenerate energy levels Pattern formation Network size Astrophysics::Cosmology and Extragalactic Astrophysics Degeneration (medical) Cell size Optics otorhinolaryngologic diseases Biophysics sense organs Network conditions business Astrophysics::Galaxy Astrophysics Spiral |
| Zdroj: | Physical review. E, Statistical, nonlinear, and soft matter physics. 79(3 Pt 2) |
| ISSN: | 1539-3755 |
| Popis: | Spontaneous spiral formation occurs when an excitation wave is input to a heterogeneous network of low- and high-light-intensity cells projected onto a light-sensitive Belousov-Zhabotinsky reaction. The range of network conditions where spirals form is increased if two waves are input at critical time intervals. Spirals degenerate to form multiple spirals and spirals trapped within excitable cells. Spiral formation and degeneration is dependent on network excitability, cell size, and network size. Results exhibit parallels with spiral formation in excitable biological systems such as the heart. |
| Databáze: | OpenAIRE |
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